Error: WebAssetManager is locked, you came late

Hi,

I have installed the Mobile Web Template for EasySocial. Now I am getting these error messages, when I tray to open ES on my iPhone.

Warning: Undefined variable $joomlaMenu in /kunden/559589_85659/piquano/templates/esmobile/error.php on line 366

Warning: Undefined variable $joomlaMenu in /kunden/559589_85659/piquano/templates/esmobile/error.php on line 370
0

WebAssetManager is locked, you came late

Warning: Undefined variable $joomlaMenu in /kunden/559589_85659/piquano/templates/esmobile/error.php
on line
467

Can you please help me to solve this issue? Please feel free to use the Superadmin, which I have included in the additional information.

Thanks
Uwe